100% ब्राउज़र में और सुरक्षित

File Checksum & SHA Hash Calculator (WebCrypto)

Client-Side Sandbox
100% In-Browser Privacy All computations and file processing run strictly in your browser. Zero server data uploads.

Compute cryptographic SHA-256, SHA-1, and SHA-512 file checksums and verify integrity hashes in your browser without uploads.

Native WebCrypto Subtitle Hashing

Verify file integrity and detect tampering by calculating SHA-256, SHA-1, SHA-384, and SHA-512 hashes directly in your browser without uploading files.

मानक सत्यापित
सटीक और निश्चित परिणाम विश्वसनीय, पुनरुत्पादक गणना परिणामों के लिए आधिकारिक विनिर्देशों के अनुसार परीक्षण किया गया।

इस टूल का उपयोग कैसे करें

  1. Select or drag and drop your image file into the upload zone above.
  2. Adjust compression quality, dimensions, or filters using interactive controls.
  3. Review the real-time visual canvas and click Download to save your optimized image.

समर्थित प्रारूप, सीमाएं और गोपनीयता

इनपुट और सीमाएं: Browser client-side processing limits apply (e.g. max recommended image size 25MB).

शून्य डेटा संग्रह: यह उपकरण आपके क्लाइंट ब्राउज़र जावास्क्रिप्ट इंजन के अंदर 100% निष्पादित होता है। कोई भी कीस्ट्रोक्स, मान, फाइलें या परिकलित परिणाम किसी भी रिमोट सर्वर पर संग्रहीत या प्रेषित नहीं होते हैं।

Keyboard Shortcut /
Press / Anytime to Quick-Search Jump directly to any tool across all categories with instant keyboard navigation.

Related Tools in Image & File Tools

Image Compressor

Compress PNG, JPEG, and WebP images directly in your browser. Maintain visual clarity while reducing file size privately.

Image Resizer

Resize images by pixel dimensions or scale percentage while locking aspect ratios with high-quality canvas resampling.

Image Format Converter

Convert images between PNG, JPEG, and WebP formats purely client-side with zero file uploads and complete privacy.

Online Image Cropper

Crop images client-side with aspect ratio presets (1:1, 4:3, 16:9, 9:16) and custom pixel dimensions.

Image to PDF Converter

Convert single or multiple images into a clean PDF document locally without uploading files to any remote server.

Client-Side PDF Merger

Combine two or more PDF documents into a single consolidated PDF file completely inside your web browser.

PDF Page Splitter & Extractor

Extract specific page ranges or individual pages from a PDF document into a new independent PDF.

PDF Metadata Inspector

Inspect PDF page counts, author, creator software, creation date, dimensions, and version information safely.

Image Watermark Tool

Stamp custom copyright watermarks onto photos and graphics with adjustable font size, opacity, and positioning.

Favicon & App Icon Generator

Generate complete favicon packages (16×16, 32×32, 48×48, 180×180) and HTML head tags from any logo or image.

File Size & Data Storage Converter

Convert data storage units between decimal metrics (KB, MB, GB, TB) and binary computing standards (KiB, MiB, GiB, TiB).

Image Color Picker & Eyedropper Inspector

Upload or drop an image and click anywhere to extract pixel colors in HEX, RGB, and HSL formats.

Image Background Color Replacer & Eraser

Replace solid background colors with transparent alpha or new custom colors using canvas tolerance matching.

Image to Base64 Data URI Converter

Encode PNG, JPEG, SVG, or WebP images into Base64 Data URIs for inline HTML and CSS embedding.

Base64 to Image Decoder & Previewer

Decode Base64 Data URIs back into full-resolution binary image files with instant download and preview.

CSV Table Viewer & Interactive Formatter

Parse, inspect, search, and filter comma/tab delimited CSV data in an interactive browser spreadsheet table.

CSV to JSON Structured Data Converter

Transform spreadsheet CSV rows into structured JSON arrays of objects with automatic type detection.

JSON to CSV Spreadsheet Exporter

Convert JSON arrays or nested API responses into delimited CSV spreadsheets ready for Excel and Sheets.

PDF Page Reorder & Arrangement Utility

Reorganize, rearrange, and reverse PDF document pages locally in your browser using secure PDF-Lib.

Image DPI & Print Size Calculator

Calculate exact physical print dimensions in inches and centimeters from digital pixel resolution across 300, 150, or custom DPI.

Image Color Palette Extractor & Swatch Generator

Extract dominant color palettes, HEX codes, and CSS variable definitions directly from uploaded images using in-browser canvas.

Image Flip & Rotate Tool (Lossless Canvas)

Rotate photos by 90, 180, or 270 degrees and mirror horizontally or vertically without losing image sharpness.

Transparent Image Checker & Alpha Channel Inspector

Verify whether PNG or WebP graphics contain true alpha transparency and test contrast against diverse background colors.

PDF Metadata Viewer & Privacy Cleaner

Inspect and strip hidden author names, creation software, and timestamps from PDF documents client-side using PDF-Lib.

PDF Page Rotation Tool (Permanent Clockwise Correction)

Permanently rotate all pages or specific page numbers in your PDF document by 90, 180, or 270 degrees clockwise.

Document Page Count & Book Spine Estimator

Estimate printed manuscript page counts, double-sided sheet requirements, and book spine thickness from word count.